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Finding the Fourth Proportional to 809,030.40, 1,213,448.40 and 335,666.40

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Solution

The fourth proportional to 809,030.40, 1,213,448.40 and 335,666.40 is: 503,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,030.40 : 1,213,448.40 = 335,666.40 : x
  2. Step 2: Convert to fraction form
    809,030.40/1,213,448.40 = 335,666.40/x
  3. Step 3: Cross multiply
    809,030.40x = 1,213,448.40 × 335,666.40
  4. Step 4: Simplify right side
    809,030.40x = 407,313,856,013.76
  5. Step 5: Solve for x
    x = 407,313,856,013.76/809,030.40
  6. Step 6: Final answer
    x = 503,459.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.